1/*	$NetBSD: aha_isapnp.c,v 1.18 2009/09/21 08:12:47 tsutsui Exp $	*/
2
3/*-
4 * Copyright (c) 1998 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Christos Zoulas.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#include <sys/cdefs.h>
33__KERNEL_RCSID(0, "$NetBSD: aha_isapnp.c,v 1.18 2009/09/21 08:12:47 tsutsui Exp $");
34
35#include <sys/param.h>
36#include <sys/systm.h>
37#include <sys/conf.h>
38#include <sys/device.h>
39
40#include <sys/bus.h>
41
42#include <dev/scsipi/scsi_all.h>
43#include <dev/scsipi/scsipi_all.h>
44#include <dev/scsipi/scsiconf.h>
45
46#include <dev/isa/isavar.h>
47
48#include <dev/isapnp/isapnpreg.h>
49#include <dev/isapnp/isapnpvar.h>
50#include <dev/isapnp/isapnpdevs.h>
51
52
53#include <dev/ic/ahareg.h>
54#include <dev/ic/ahavar.h>
55
56static int	aha_isapnp_probe(device_t, cfdata_t, void *);
57static void	aha_isapnp_attach(device_t, device_t, void *);
58
59CFATTACH_DECL_NEW(aha_isapnp, sizeof(struct aha_softc),
60    aha_isapnp_probe, aha_isapnp_attach, NULL, NULL);
61
62int
63aha_isapnp_probe(device_t parent, cfdata_t match, void *aux)
64{
65	int pri, variant;
66
67	pri = isapnp_devmatch(aux, &isapnp_aha_devinfo, &variant);
68	if (pri && variant > 0)
69		pri = 0;
70	return (pri);
71}
72
73void
74aha_isapnp_attach(device_t parent, device_t self, void *aux)
75{
76	struct aha_softc *sc = device_private(self);
77	struct aha_probe_data apd;
78	struct isapnp_attach_args *ipa = aux;
79
80	sc->sc_dev = self;
81
82	printf("\n");
83
84	if (isapnp_config(ipa->ipa_iot, ipa->ipa_memt, ipa)) {
85		aprint_error_dev(self, "error in region allocation\n");
86		return;
87	}
88
89	sc->sc_iot = ipa->ipa_iot;
90	sc->sc_ioh = ipa->ipa_io[0].h;
91	sc->sc_dmat = ipa->ipa_dmat;
92
93	if (!aha_find(sc->sc_iot, sc->sc_ioh, &apd)) {
94		aprint_error_dev(self, "aha_find failed\n");
95		return;
96	}
97
98	if (ipa->ipa_ndrq == 0) {
99		if (apd.sc_drq != -1) {
100			printf("%s: no PnP drq, but card has one\n",
101			    device_xname(self));
102			return;
103		}
104	} else if (apd.sc_drq != ipa->ipa_drq[0].num) {
105		printf("%s: card drq # (%d) != PnP # (%d)\n",
106		    device_xname(self), apd.sc_drq, ipa->ipa_drq[0].num);
107		return;
108	} else {
109		int error = isa_dmacascade(ipa->ipa_ic, ipa->ipa_drq[0].num);
110		if (error) {
111			aprint_error_dev(self,
112			    "unable to cascade DRQ, error = %d\n", error);
113			return;
114		}
115	}
116
117	if (apd.sc_irq != ipa->ipa_irq[0].num) {
118		printf("%s: card irq # (%d) != PnP # (%d)\n",
119		    device_xname(self), apd.sc_irq, ipa->ipa_irq[0].num);
120		return;
121	}
122
123
124	sc->sc_ih = isa_intr_establish(ipa->ipa_ic, ipa->ipa_irq[0].num,
125	    ipa->ipa_irq[0].type, IPL_BIO, aha_intr, sc);
126
127	if (sc->sc_ih == NULL) {
128		aprint_error_dev(self, "couldn't establish interrupt\n");
129		return;
130	}
131
132	aha_attach(sc, &apd);
133}
134